There are two responses to Strawballs' post. The first is facetious and probably inappropriate, but I went to a convent school so I think I can get away with it ;)
The second is a more serious one. I'm extrapolating a bit but a blanket prohibitive stance to teenage sex rather than being realistic and providing sex education that's dispassionate and designed actually to get kids to seek out contraception is clearly a disaster. I don't actually know if that's what happened here, obviously, but I'm guessing the message from the nuns has been "don't have premarital sex, end of" rather than "if you're going to mess around and explore your budding sexuality, for God's sake here's the stuff you need to know".
I'm not sure that "Poor little scrap" is the appropriate phrase, but maybe you were referring to the baby?
Either way, one life is now handicapped, and another has started badly. I would like to think there'll be happy endings, but the chances are never great in these circumstances. With luck, the new mother has a supportive family arround her.